Plastic tongue scraper having a concave collecting head



FIG. 1 is a side and bottom perspective view of a plastic tongue scraper having a concave collecting head, showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a side view thereof, the unshown opposite side being of mirror-image appearance; and,

FIG. 4 is a bottom view thereof. 

The ornamental design for a plastic tongue scraper having a concave collecting head, as shown and described. 